SikaRep® Microcrete-4

High performance non-shrink cementitious micro-concrete for concrete repair

SikaRep® Microcrete-4 is factory designed pourable, shrinkage compensated, high performance micro-concrete with selected cement, aggregate and other chemicals. Recommended water and coarse aggregate to be added at site as per requirement.

  • No vibration needed
  • Easily pumpable
  • Easy to mix and apply

Usage

SikaRep® Microcrete-4 is suitable for producing high performance micro-concrete for deep repairs to all concrete structures such as:

  • Highway bridges and culverts
  • Wharves and jetties
  • Tunnels and mines
  • Dams and reservoirs
  • Car parks and basements
  • Power stations
  • Sewerage and water treatment structures
  • Anywhere where localized deep repair is required
  • Anywhere additional thickness is required (column and beam jacketing, etc.)
  • Structural strengthening of structure by section enlargement

Packaging

30 kg bag

Advantages

  • No vibration needed
  • Easily pumpable
  • Easy to mix and apply
  • Excellent flow characteristics
  • Rapid strength development
  • High ultimate strengths
  • Impact resistant
  • Non-corrosive
  • Non-toxic
  • Iron and chloride free
  • Dense and non-shrink concrete created by dual stage expansion
  • Good bonding with existing concrete
  • Adjustable consistency by controlling the water within the recommended limit

Colour

Powder / Grey

Product Information

Composition

Portland cement, selected fillers and aggregates, special additives

Shelf life

6 months from date of production

Storage conditions

The product must be stored properly in undamaged and unopened, original sealed packaging, in dry conditions at temperatures between +5 °C and +35 °C. Protect from moisture, direct sunlight and frost.

Technical Information

Compressive strength

Curing time

Compressive strength
1 day ≥ 25 N/mm2
3 days ≥ 35 N/mm2
7 days ≥ 45 N/mm2
28 days ≥ 65 N/mm2

Values measured at water : powder = 0.15, cube size 70.6 mm, curing temperature +30 °C

Tensile strength in flexure

Curing time

Flexural strength
7 days ≥ 8 N/mm2
28 days ≥ 9 N/mm2

Values measured at water : powder = 0.15, curing temperature +30 °C

Splitting tensile strength

≥ 3.5 N/mm2 (water : powder = 0.15, 28 days, +30 °C)

(ASTM C496)

Shrinkage

No shrinkage after initial setting

Expansion

Up to 4 %

(ASTM C1090)

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